metal O-Ring

> Category:Metal O-Ring
> Applications:
Aerospace equipments; Semiconductor; Cryogenic; Engines; Nuclear instruments; Heat exchangers; Reactors; Hot Runners; Oil & Gas; Flow meters;  Chemical fibers; Food & medicine equipment etc.  
  • Working temperature


  • Working Pressure


  • Suitable medium

    Oil water gas etc.

  • Leak Rate

    1E-10pa m³/s

  • Conventional Material

    321/316L/304/inconel 718/750 Aluminum copper etc.


Features & Benifits

Metal O-ring is a high-strength metallic tube designed to be used in harsh working conditions. It's a sealing choice for high-pressure/high-temperature applications with little spring back. Metal O-rings may be utilized in high temperature (up to 750°C), cryogenic (down to -270°C), high pressure (up to 1500kgf/cm2), high vacuum (up to 1E-9 mmHg), and other extreme static sealing conditions due to their unique structure and composition.
  • Specifications:

1. Specifications of the product:
     • Range of outer diameters: 0.250" (6mm) to 120" (3048mm)
     • Range of cross section: 1/32" (0.9mm) to 1/2''(12.7mm)
     • Typical product forms are round, rectangular, and racetrack (Customized product shapes also availabe)
2. Able to withstand both internal and external pressure
3: The operating temperature varies from -270°C to 750°C or greater.
4: The functional pressure range is Ultra-vacuum to +300 MPa.
5: A diverse variety of plating choices contributes to a high level of sealing capability.
6: Electroplating procedure that is both solid and beautiful.
7: Low leakage rate of 1E-10pa m3/s or less.
8: There is a three-year warranty period.

Metallic Material Options:

    • Alloy 718    • Alloy X-750    • 316 SS     • 321 SS     • Waspaloy

Plating/Coating Options:

    • Silver     • Nickel     • Gold     • Stannum    • Copper    • PTFE

Metal O-Ring Internal Pressure Design Guide

Metal O-Ring External Pressure


Application Characteristics

1: A sufficient seating load ensures that the metal seal is fully contacted, ensuring the seal effect
2: Good sealing performance with :
• High temperature resistance
• High pressure resistance
• Wear resistance
• Corrosion resistance
3: Can achieve sealing effect with lowest cost.


Sonkit Is Your Sealing Design Facilitator

Sonkit specializes in metallic seals, we are serving customers from all kinds industries, include Global Fortune 500 Companies.

You can benefit from Sonkit via:

• Experienced research and technical support team
• Stable and reliable electroplating process
• Customized heating process with high reliablity
• In-house test labs for high quality control
• Quick Response Time
• Close co-operation with renowned universities and Research Institute
• Experience cooperating with Top500 Enterprise worldwide

To Ensure you get the high quality products, we provide:
• 100% strength test for weldment
• Provide weld pass inspection report as required
• Helium leak detection report
• Static Pressure test to 100Mpa
• Coating thickness detection
• Digital size inspection and special measuring tool inspection capabilities

Purchasing Inqueries, we provide Quotation in 24 hours.

Please email to: (Or make a call:  +8613917192435 (WhatsApp))


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